Package org.apache.commons.collections4

Interface Closure<T>

Type Parameters:
T - the type that the closure acts on
All Known Implementing Classes:
CatchAndRethrowClosure, ChainedClosure, ExceptionClosure, ForClosure, IfClosure, NOPClosure, SwitchClosure, TransformerClosure, WhileClosure
public interface Closure<T>
Defines a functor interface implemented by classes that do something.

A Closure represents a block of code which is executed from inside some block, function or iteration. It operates an input object.

Standard implementations of common closures are provided by ClosureUtils. These include method invocation and for/while loops.

Since:
1.0
Version:
$Id: Closure.java 1543261 2013-11-19 00:47:34Z ggregory $

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    execute(T input)
    Performs an action on the specified input object.

  • Method Details

    • execute

      void execute(T input)
      Performs an action on the specified input object.
      Parameters:
      input - the input to execute on
      Throws:
      ClassCastException - (runtime) if the input is the wrong class
      IllegalArgumentException - (runtime) if the input is invalid
      FunctorException - (runtime) if any other error occurs